Diffusion Quiz

What is Ich?

• A type of plant

• A water treatment

• A parasitic disease

• A type of fish

What causes Ich?

• A protist

• A fungus

• A virus

• A bacterium

What is a common symptom of Ich in fish?

• Red spots

• White dots

• Green algae

• Black stripes

What is methylene blue used for?

• Feeding fish

• Decorating the aquarium

• Treating Ich

• Cleaning the tank

What process allows methylene blue to spread in water?

• Filtration

• Active transport

• Diffusion

• Osmosis

What is diffusion?

• Movement of molecules from low to high concentration

• Movement of molecules using energy

• Movement of molecules from high to low concentration

• Movement of water through a membrane

What type of transport is diffusion?

• Facilitated transport

• Active transport

• Bulk transport

• Passive transport

What is facilitated diffusion?

• Diffusion that stops at equilibrium

• Diffusion of water only

• Diffusion through a protein channel

• Diffusion that requires energy

Which factor does NOT affect the rate of diffusion?

• Distance

• Temperature

• Mass of the substance

• Colour of the substance

How does temperature affect diffusion rate?

• Temperature has no effect

• Higher temperature increases diffusion rate

• Lower temperature increases diffusion rate

• Higher temperature decreases diffusion rate